![A health agent carries a bucket of guppy fish to place them in standing water to consume larva of Zika-transmitting mosquitoes in an empty lot of Rio de Janeiro's Tijuca neighborhood, Brazil, February 17, 2016.](/sites/default/files/multimedia_images_2017/brazil_amicus_presser_photo.jpg)
A health agent carries a bucket of guppy fish to place them in standing water to consume larva of Zika-transmitting mosquitoes in an empty lot of Rio de Janeiro's Tijuca neighborhood, Brazil, February 17, 2016.
© 2016 Reuters
A health agent carries a bucket of guppy fish to place them in standing water to consume larva of Zika-transmitting mosquitoes in an empty lot of Rio de Janeiro's Tijuca neighborhood, Brazil, February 17, 2016.